Laminar cooling method, device, electronic equipment, readable storage medium and production system for cooling roller bed

Abstract

This application discloses a cooling method, apparatus, electronic equipment, readable storage medium, and hot-rolled steel strip production system for a laminar flow cooling roller conveyor, applicable to the field of metallurgical technology. The method includes acquiring temperature detection values ​​from hot metal detectors deployed at the inlet and outlet of the finishing mill. When the first and second temperature detection values ​​first meet the condition of no steel strip in the laminar flow cooling zone, a cooling water delivery command is sent to the laminar flow cooling water system according to a preset unit cooling time to cool the laminar flow cooling roller conveyor. When the first and second temperature detection values ​​again meet the condition of no steel strip in the laminar flow cooling zone, and the current time reaches a preset cooling interval, a cooling water delivery command is sent. This application overcomes the shortcomings of related technologies that cannot guarantee the cooling of the entire cooling roller conveyor, enabling precise control of the laminar flow cooling roller conveyor for cooling.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgy, in particular to a cooling method and device of a laminar cooling roller, an electronic device, a readable storage medium and a hot-rolled steel strip production system. BACKGROUND

[0002] In the normal production process of the finishing mill group of the hot-rolled steel strip production line, the hot-rolled steel strip is cooled to the target temperature by the laminar cooling unit after being finally shaped by the finishing mill group, and then is collected by the coiler. The laminar cooling roller is located in the laminar cooling stage before the outlet of the finishing mill group and the coiler, and serves as a driving device for the steel strip to support and transport the steel strip during the cooling process. The laminar cooling roller is in long-term contact with the hot steel strip, and inevitably expands due to heat. When the lubrication is insufficient, it may cause bearing burnout, motor tripping and other faults. The burnout and stop of the laminar cooling roller not only causes scratches on the surface of the steel strip, seriously affecting the product quality of the steel strip, but also has a great impact on the production efficiency and cost control due to the downtime treatment.

[0003] In order to avoid the faults caused by the heating of the laminar cooling roller, the laminar cooling water is turned on to cool the laminar cooling roller during the production of the steel strip. However, in some application scenarios, the target temperature of the steel strip does not require all the headers of the laminar cooling to be opened. When the same material or the same specification of steel strip is continuously produced, the number and sequence of the opened headers of the laminar cooling are fixed, and the laminar cooling roller at some positions may be cooled by the cooling water for a long time. In addition, different cooling modes may include front cooling, rear cooling and sparse cooling, and the fixed cooling positions may also change, which cannot guarantee that the entire cooling roller can be cooled.

[0004] Therefore, it is a technical problem to be solved by those skilled in the art to accurately control the cooling of the laminar cooling roller. SUMMARY

[0005] The present application provides a cooling method and device of a laminar cooling roller, an electronic device, a readable storage medium and a hot-rolled steel strip production system, which can accurately control the cooling of the laminar cooling roller.

[0006] To solve the above technical problems, the present application provides the following technical solutions:

[0007] In one aspect, the present application provides a cooling method of a laminar cooling roller, comprising:

[0008] obtaining a first temperature detection value of a first hot metal detector deployed at the inlet of the finishing mill group and a second temperature detection value of a second hot metal detector deployed at the outlet of the laminar cooling;

[0009] when the first temperature detection value and the second temperature detection value meet the laminar cooling area no steel strip condition for the first time, sending a cooling water delivery instruction for cooling treatment of the laminar cooling roller way to the laminar cooling water system according to a preset unit cooling time length; the cooling water delivery instruction indicates the opening number, the opening sequence and the opening time length of the cooling valve;

[0010] when the first temperature detection value and the second temperature detection value meet the laminar cooling area no steel strip condition again, and the current time reaches a preset cooling interval, sending the cooling water delivery instruction.

[0011] Optionally, before the cooling water delivery instruction for cooling treatment of the laminar cooling roller way to the laminar cooling water system according to the preset unit cooling time length is sent, the method further comprises:

[0012] previously setting a cooling parameter self-defined option on a man-machine interactive interface;

[0013] when receiving a cooling parameter setting instruction of a user, judging whether there is a cooling parameter;

[0014] if there is no cooling parameter, obtaining the unit cooling time length and the cooling interval by analyzing the cooling parameter setting instruction;

[0015] if there is a cooling parameter, updating the current unit cooling time length and / or the current cooling interval by analyzing the cooling parameter setting instruction.

[0016] Optionally, before the first temperature detection value of the first hot metal detector deployed at the inlet of the finishing rolling mill group and the second temperature detection value of the second hot metal detector deployed at the outlet of the laminar cooling are obtained, the method further comprises:

[0017] previously setting an automatic cooling treatment function configuration option on a man-machine interactive interface;

[0018] when receiving an automatic cooling treatment request of the cooling roller way, obtaining the first temperature detection value of the first hot metal detector deployed at the inlet of the finishing rolling mill group and the second temperature detection value of the second hot metal detector deployed at the outlet of the laminar cooling.

[0019] Optionally, when the first temperature detection value and the second temperature detection value meet the laminar cooling area no steel strip condition for the first time, the method further comprises:

[0020] when the first temperature detection value and the second temperature detection value correspond to the missing state at the same time for the first time, it is determined that the laminar cooling area no steel strip condition is met.

[0021] Optionally, the cooling water delivery instruction for cooling treatment of the laminar cooling roller way to the laminar cooling water system according to the preset unit cooling time length comprises:

[0022] issuing a valve opening instruction to the laminar cooling system to control all cooling valves of the laminar cooling water system to be fully opened, and starting timing at the same time;

[0023] when the current timing duration is detected to be equal to the unit cooling duration, issuing a valve closing instruction to the laminar cooling system to control all cooling valves of the laminar cooling water system to be fully closed.

[0024] Optionally, when the first temperature detection value and the second temperature detection value again satisfy the condition that the laminar cooling area is free of steel strips, and the current time reaches the preset cooling interval, a cooling water delivery instruction is sent, which comprises:

[0025] when all cooling valves of the laminar cooling water system are detected to be fully closed, starting a counter for recording the steel production quantity;

[0026] when the first temperature detection value and the second temperature detection value again satisfy the condition that the laminar cooling area is free of steel strips, determining whether the current count value is equal to the cooling interval;

[0027] if the current count value is equal to the cooling interval, a cooling water delivery instruction is sent; if the current count value is not equal to the cooling interval, the steel production quantity of the counter is updated.

[0028] Another aspect of the present application provides a cooling device of a laminar cooling roller, which comprises:

[0029] a data acquisition module, configured to acquire a first temperature detection value of a first hot metal detector arranged at an entrance of a finishing rolling mill and a second temperature detection value of a second hot metal detector arranged at an exit of a laminar cooling device;

[0030] a cooling processing module, configured to, when the first temperature detection value and the second temperature detection value satisfy a condition that a laminar cooling area is free of steel strips for the first time, send a cooling water delivery instruction for cooling processing of the laminar cooling roller to the laminar cooling water system according to a preset unit cooling duration; the cooling water delivery instruction indicates a number of cooling valves to be opened, an opening sequence and an opening duration; and when the first temperature detection value and the second temperature detection value again satisfy the condition that the laminar cooling area is free of steel strips, and a current time reaches a preset cooling interval, a cooling water delivery instruction is sent.

[0031] The present application further provides an electronic device, comprising a processor configured to implement the steps of the cooling method of the laminar cooling roller according to any one of the preceding aspects when executing a computer program stored in a memory.

[0032] The application further provides a readable storage medium, wherein the readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of the cooling method of the laminar cooling roller according to any one of the preceding.

[0033] The application further provides a hot-rolled steel strip production system, comprising a finishing rolling unit, a first hot metal detector, a laminar cooling water system, a laminar cooling roller, a second hot metal detector, a coiler, a human-computer interaction module and a processor.

[0034] The processor is connected with the first hot metal detector, the second hot metal detector, the laminar cooling water system and the human-computer interaction module respectively.

[0035] The first hot metal detector is arranged at the entrance of the finishing rolling unit, and the second hot metal detector is arranged at the outlet of the laminar cooling.

[0036] The processor is used to implement the steps of the cooling method of the laminar cooling roller according to any one of the preceding.

[0037] The technical scheme provided by the application has the advantages that without adding a new cooling device, the existing process equipment is used, and the hot metal detectors arranged at the entrance of the finishing rolling unit and the outlet of the laminar cooling are used to determine whether there is a steel strip in the laminar cooling area. During the interval process without producing the steel strip, the laminar cooling water system is used to intermittently cool the laminar cooling roller, the cooling process of all positions of the laminar cooling roller can be accurately controlled, the failure rate of the laminar cooling roller can be effectively reduced, and the purpose of improving the quality and production efficiency of the steel strip product is achieved, which is beneficial to reducing the cost of the whole hot-rolled steel strip production system.

[0038] In addition, the application further provides a corresponding implementation device, electronic equipment, readable storage medium and hot-rolled steel strip production system for the cooling method of the laminar cooling roller, which further makes the method more practical, and the device, electronic equipment, readable storage medium and hot-rolled steel strip production system have corresponding advantages.

[0039] It should be understood that the foregoing general description and the following detailed description are only exemplary and are not limiting to the application. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme of the application or related technology, the following will briefly introduce the drawings needed to be used in the embodiment or related technology description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0041] Figure 1 A flowchart of a cooling method of a laminar cooling roller provided by the present application;

[0042] Figure 2 A specific embodiment structural framework diagram of a cooling device of a laminar cooling roller provided by the present application;

[0043] Figure 3 A specific embodiment structural framework diagram of an electronic device provided by the present application;

[0044] Figure 4 A specific embodiment structural diagram of a hot-rolled steel strip production system provided by the present application. DETAILED DESCRIPTION

[0045] In order to make the personnel in the technical field better understand the scheme of the present application, the present application will be further described in detail below in combination with the drawings and specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person of ordinary skill in the art without making creative labor, belong to the scope of protection of the present application.

[0046] The terms "first", "second", and the like in the specification of the present application and claims and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations of the two, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but can include steps or units that are not listed. The following detailed description of various non-limiting embodiments of the present application.

[0047] First refer to Figure 1 , Figure 1 A flowchart of a cooling method of a laminar cooling roller provided by the present application, the present application can include the following contents:

[0048] S101: Obtain a first temperature detection value of a first hot metal detector deployed at the entrance of the finishing mill set, and a second temperature detection value of a second hot metal detector deployed at the outlet of the laminar cooling.

[0049] In the embodiment, a hot metal detector for sensing hot steel strip is arranged at the inlet of the finishing rolling mill and the outlet of the laminar cooling, respectively. The hot metal detector can be any sensor capable of detecting temperature, which does not affect the implementation of the present application. For the convenience of description, the temperature value detected by the first hot metal detector for the temperature near the finishing rolling mill is defined as the first temperature detection value, and the temperature value detected by the second hot metal detector for the temperature near the outlet of the laminar cooling is defined as the second temperature detection value. During rolling, the head of the steel strip passes through the first hot metal detector, the finishing rolling mill, the laminar cooling roller way, and the second hot metal detector in turn, and finally enters the coiler to start collecting. The tail of the steel strip leaves the first hot metal detector, the finishing rolling mill, the laminar cooling roller way, and the second hot metal detector in turn, and finally completes the collection into a coil in the coiler. Therefore, the temperature detected by the first hot metal detector and the second hot metal detector can determine the position of the steel strip, and identify whether there is a steel strip in the laminar cooling area, i.e., the area from the outlet of the finishing rolling mill to the coiler.

[0050] S102: When the first temperature detection value and the second temperature detection value meet the condition of no steel strip in the laminar cooling area for the first time, a cooling water delivery instruction for cooling treatment of the laminar cooling roller way is sent to the laminar cooling water system according to a preset unit cooling time length.

[0051] In the embodiment, the first time refers to the first time after starting the cooling water delivery of the automatic control laminar cooling water system. The condition of no steel strip in the laminar cooling area is preset, which is used to identify the temperature range of the first temperature detection value and the second temperature detection value when there is no steel strip in the laminar cooling area. The unit cooling time length is a preset custom cooling parameter, which is used to represent the time length of the current cooling water delivery of the laminar cooling water system to the laminar cooling roller way. The cooling water delivery instruction is used to represent the opening number, opening sequence, and opening time length of the cooling valve, which is a valve for controlling whether the header of the laminar cooling water system is opened. If the laminar cooling water system delivers cooling water to the laminar cooling roller way once, the opening time length is the unit cooling time length. If the laminar cooling water system delivers cooling water to the laminar cooling roller way in batches in the current cooling process, the sum of the opening time length of each batch is the unit cooling time length. The opening number of the cooling valve can be flexibly selected according to the actual application scene and actual demand, which is not limited in the present application, as long as the temperature of all positions of the laminar cooling roller way can be lower than the specified temperature. Of course, different cooling water delivery instruction configuration templates can be preset for different application scenes, and the system can read and issue the corresponding cooling water delivery instruction based on the current application scene, which improves the flexibility and automation degree.

[0052] S103: When the first temperature detection value and the second temperature detection value meet the condition of no steel strip in the laminar cooling area again, and the current time reaches the preset cooling interval, the cooling water delivery instruction is sent.

[0053] In the embodiment, the cooling interval can be set in advance according to the customized cooling parameter, considering that the cooling treatment can be performed on all positions of the laminar cooling roller way, so that the temperature of all positions of the laminar cooling roller way is lower than the specified temperature, and the cost and the cooling operation frequency are also considered. The cooling interval is flexibly selected according to the actual production situation, that is, the time length of the cooling treatment required for the laminar cooling roller way to be cooled after the last cooling treatment due to the temperature rise of the laminar cooling roller way during the transportation of the hot steel strip. The cooling water delivery instruction can also include the number, sequence and duration of the opening of the cooling valve, and the same generation method and the same instruction as the last sent cooling water delivery instruction can be used for delivery, or a different generation method and / or different instruction from the last sent cooling water delivery instruction can be used for delivery, which does not affect the implementation of the present application, and the person skilled in the art can flexibly select according to the actual situation.

[0054] It should be noted that the step is continuously performed during the cooling treatment of the laminar cooling roller way, that is, the first temperature detection value and the second temperature detection value can be obtained in real time during the cooling treatment of the laminar cooling roller way, and when the first temperature detection value and the second temperature detection value meet the laminar cooling area without steel strip condition, the time interval between the current time and the last cooling treatment completion time is determined, and if the time interval between the current time and the last cooling treatment completion time is the cooling interval, the generated cooling water delivery instruction is sent to the laminar cooling water system; if the time interval between the current time and the last cooling treatment completion time is not the cooling interval, the step is repeated until the cooling treatment of the laminar cooling roller way is not required.

[0055] In the technical scheme provided in the present application, without adding new cooling devices, the existing process equipment is used to determine whether there is a steel strip in the laminar cooling area according to the hot metal detectors respectively arranged at the inlet of the finishing mill group and the outlet of the laminar cooling, and the laminar cooling water system is used to perform intermittent cooling treatment on the laminar cooling roller way during the gap without producing steel strips, so that the cooling treatment of all positions of the laminar cooling roller way can be accurately controlled, the failure rate of the laminar cooling roller way can be effectively reduced, and the purpose of improving the quality and production efficiency of the steel strip product is achieved, which is beneficial to reducing the cost of the whole hot rolling steel strip production system.

[0056] It should be noted that there is no strict execution sequence between the steps in the present application, as long as the logical sequence is met, the steps can be executed simultaneously, or executed according to a certain preset sequence, Figure 1 which is only an illustrative way and does not mean that only such an execution sequence can be used.

[0057] To further enhance the flexibility of cooling treatment on laminar flow cooling rollers and improve the practicality of hot-rolled steel strip production systems, based on the above embodiments, this application also provides an implementation method that allows for setting and real-time adjustment of custom cooling parameters, which may include the following:

[0058] Custom cooling parameters can be pre-configured in the human-computer interaction interface;

[0059] Upon receiving a user's command to set cooling parameters, determine whether cooling parameters exist.

[0060] If no cooling parameters exist, the unit cooling duration and cooling interval are obtained by parsing the cooling parameter setting instructions;

[0061] If cooling parameters exist, the cooling duration and / or cooling interval of the current unit are updated by parsing the cooling parameter setting instructions.

[0062] In this embodiment, the human-machine interface (HMI) serves as the window for users to interact with the hot-rolled steel strip production system. Users send requests to the system through the HMI, which includes, but is not limited to, enabling various system functions, configuring and defining parameters, and issuing various commands and requests. To enable the setting of cooling parameters and their real-time adjustment, a custom cooling parameter option can be pre-set in the HMI. Users can input the current cooling parameter value through this option. Cooling parameters include, but are not limited to, unit cooling duration and cooling interval. In scenarios where the hot-rolled steel strip production system already stores cooling parameters (e.g., one or all of them stored locally or in the cloud), the system parses the cooling parameter setting command sent by the user through the HMI to determine the parameters that need to be set or adjusted. If the cooling parameter carried in the setting command is already present locally or in the cloud, the corresponding cooling parameter value is updated or modified to match the value in the setting command. If the cooling parameter carried in the setting command is not stored locally or in the cloud, the value of the cooling parameter in the setting command is stored in a designated location.

[0063] To further improve the automation level and practicality of the hot-rolled steel strip production system, based on the above embodiments, this application also provides an implementation method that allows for the free selection of whether to activate the automated laminar flow cooling roller conveyor function, which may include the following:

[0064] The automatic cooling function configuration option is set in advance in the human-computer interaction interface;

[0065] When receiving the request of the automatic cooling treatment of the cooling roller, the first temperature detection value of the first hot metal detector arranged at the entrance of the finishing rolling mill is acquired, and the second temperature detection value of the second hot metal detector arranged at the exit of the laminar cooling is acquired.

[0066] In the embodiment, the automatic cooling treatment function configuration options include starting the automatic cooling treatment function and stopping the automatic cooling treatment function, and the user can start the automatic cooling treatment function through the man-machine interface. When the system receives the request of the automatic cooling treatment of the cooling roller, the steps in the cooling method of the laminar cooling roller in the above S101-S103 and the steps in the cooling method of the laminar cooling roller in any one of the above embodiments are triggered and executed.

[0067] The above embodiments do not make any limitation on how to determine the position of the steel strip. As an illustrative embodiment, the present embodiment also provides a simple and feasible determination method, which can include the following contents:

[0068] When the first temperature detection value and the second temperature detection value correspond to the detection loss state at the same time for the first time, it is determined that the condition of no steel strip in the laminar cooling area is met.

[0069] When the hot steel strip passes through the first hot metal detector or the second hot metal detector, the first hot metal detector or the second hot metal detector is in the detection state, and the first hot metal detector or the second hot metal detector will feed back the corresponding detection value to the system, such as the first temperature detection value = 1 and the second temperature detection value = 1. When the hot metal leaves, the first hot metal detector or the second hot metal detector is in the detection loss state, and the first hot metal detector or the second hot metal detector will feed back the corresponding detection value to the system, such as the first temperature detection value = 0 and the second temperature detection value = 0. The so-called detection state refers to that the environment temperature value detected by the first hot metal detector or the second hot metal detector is greater than the specified temperature threshold, indicating that there is currently hot steel strip in the laminar cooling area. The so-called detection loss state refers to that the environment temperature value detected by the first hot metal detector or the second hot metal detector is less than the specified temperature threshold, indicating that there is currently no hot steel strip in the laminar cooling area. Taking the detection value of the hot metal detector in the detection loss state as an example, when the first temperature detection value = 0 and the second temperature detection value = 0, there is no steel strip in the laminar cooling area at this time.

[0070] The above embodiments do not make any limitation on how to issue the cooling water delivery instruction to cool the laminar cooling roller. As an illustrative embodiment, the present embodiment also provides a simple and efficient cooling method, which can include the following contents:

[0071] The valve opening instruction of opening all the cooling valves of the laminar cooling water system is sent to the laminar cooling system, and the timing is started; when the current timing duration is equal to the unit cooling duration, the valve closing instruction of closing all the cooling valves of the laminar cooling water system is sent to the laminar cooling system.

[0072] In the embodiment, when it is determined that the laminar cooling area is without the steel strip, if it is the first time to cool, the cooling water delivery instruction is directly generated; if it is not the first time, the cooling water delivery instruction is generated every preset cooling interval when the laminar cooling area is without the steel strip. The embodiment sends the first instruction to control all the cooling valves to be opened to the laminar cooling system through the cooling water delivery instruction including the valve opening and valve closing instructions, and the timer t starts timing from 0 at this time; when the timer t is equal to the unit cooling duration, the second instruction is sent to control all the cooling valves to be closed to the laminar cooling system. The cooling treatment of the laminar cooling roller is completed once.

[0073] Considering that the production time of different types of steel strips is uncertain, in order to simplify the operation and improve the practicability, the cooling interval of the embodiment can be defined by the number of steels produced between two cooling treatments, which can include the following contents:

[0074] When it is detected that all the cooling valves of the laminar cooling water system are closed, the counter recording the steel production quantity is started; when the first temperature detection value and the second temperature detection value again satisfy the condition that the laminar cooling area is without the steel strip, it is judged whether the current count value is equal to the cooling interval; if the current count value is equal to the cooling interval, the cooling water delivery instruction is sent; if the current count value is not equal to the cooling interval, the steel production quantity of the counter is updated.

[0075] In order to make the skilled in the art more clearly understand the technical scheme of the present application, the present application also provides an illustrative embodiment, the cooling interval of the embodiment is 5 steels, the unit cooling duration is 20s, and the detection value fed back by the hot metal detector in the detection state is 0, which can include the following contents:

[0076] Step 1: the user sets the cooling duration T to 20s and the cooling interval I to 5 steels through the operation of the display screen.

[0077] Step 2: the user selects to open the automatic cooling function of the laminar cooling roller in the operation of the display screen.

[0078] Third step: after the function is put into use, when the first temperature detection value = 0 and the second temperature detection value = 0 for the first time, a first instruction is triggered to the laminar cooling system to control the cooling valve to be fully opened, at this time, the timer t starts timing from 0, when the timer t is equal to the cooling time T, a second instruction is triggered to the laminar cooling system to control the cooling valve to be fully closed, thereby completing the first cooling treatment of the laminar cooling roller.

[0079] Fourth step: after the first cooling treatment is completed, the counter is started and the counter value i = 0 is assigned.

[0080] Fifth step: when the first temperature detection value = 0 and the second temperature detection value = 0 for the second time, it is triggered to judge whether i is equal to I.

[0081] Sixth step: obviously, i = 0 is not equal to I = 5 at this time, so i = 0 + 1 = 1 is assigned, and the fifth step is returned to continue judging, until i = I = 5, at this time, it is considered that 5 steel bars have been separated from the first cooling, and the cooling treatment of the laminar cooling roller in the third step is performed.

[0082] Seventh step: after the cooling is completed, the counter is cleared, i = 0 is assigned, and the fifth step is returned to continue the loop judgment;

[0083] Eighth step: according to the operation of cooling 5 steel bars once and 20 seconds once, the operation is infinitely looped until the user selects to stop the automatic cooling function of the laminar cooling roller.

[0084] As can be seen from the above, the embodiment does not increase new cooling devices, but uses the existing process equipment to realize intermittent cooling of the laminar cooling roller by judging the position of the steel belt, using the production gap and using laminar cooling water, thereby reducing the failure rate of the laminar cooling area transport roller, and achieving the purpose of improving product quality assurance capability and production efficiency.

[0085] The application also provides a corresponding device for the cooling method of the laminar cooling roller way, further making the method more practical. The device can be described from the perspective of functional modules and the perspective of hardware. The device for cooling the laminar cooling roller way provided by the application is introduced below, which is used to implement the cooling method of the laminar cooling roller way provided by the application. In this embodiment, the device for cooling the laminar cooling roller way can include or be divided into one or more program modules stored in a storage medium and executed by one or more processors to complete the cooling method of the laminar cooling roller way disclosed in Embodiment 1. The program modules referred to by the application refer to a series of computer program instruction segments capable of completing a specific function, which are more suitable than the program itself for describing the execution process of the device for cooling the laminar cooling roller way in the storage medium. The functions of each program module of this embodiment will be specifically introduced in the following description. The device for cooling the laminar cooling roller way described below can be correspondingly referred to the cooling method of the laminar cooling roller way described above.

[0086] Based on the perspective of functional modules, see Figure 2 , Figure 2 The structure diagram of the device for cooling the laminar cooling roller way provided by the application in a specific embodiment, which can include:

[0087] The data acquisition module 201 is configured to acquire a first temperature detection value of a first hot metal detector deployed at the entrance of the finishing mill train and a second temperature detection value of a second hot metal detector deployed at the outlet of the laminar cooling.

[0088] The cooling processing module 202 is configured to send a cooling water delivery instruction for cooling processing of the laminar cooling roller way to the laminar cooling water system according to a preset unit cooling time when the first temperature detection value and the second temperature detection value satisfy the condition of no steel strip in the laminar cooling area for the first time. The cooling water delivery instruction indicates the opening number, the opening sequence and the opening time of the cooling valve. The cooling water delivery instruction is sent when the first temperature detection value and the second temperature detection value satisfy the condition of no steel strip in the laminar cooling area again and the preset cooling interval is reached at the current time.

[0089] Optionally, in some embodiments of this embodiment, the above-mentioned cooling processing module 202 can be further configured to: set a cooling parameter self-defined option in advance on a human-computer interaction interface; when receiving a cooling parameter setting instruction of a user, judge whether there is a cooling parameter; if there is no cooling parameter, obtain the unit cooling time and the cooling interval by analyzing the cooling parameter setting instruction; if there is a cooling parameter, update the current unit cooling time and / or the current cooling interval by analyzing the cooling parameter setting instruction.

[0090] Illustratively, in some other embodiments of the present embodiment, the data acquisition module 201 can be further configured to: set an automatic cooling processing function configuration option in advance on a human-computer interaction interface; and when receiving an automatic cooling processing request of the cooling roller, acquire a first temperature detection value of a first hot metal detector deployed at an entrance of the finishing rolling mill and a second temperature detection value of a second hot metal detector deployed at an exit of the laminar cooling.

[0091] Optionally, in some other embodiments of the present embodiment, the cooling processing module 202 can be further configured to: when the first temperature detection value and the second temperature detection value both correspond to the out-of-steel condition for the first time, determine that the no-steel condition in the laminar cooling area is met.

[0092] As an illustrative embodiment of the present embodiment, the cooling processing module 202 can be further configured to: issue a valve opening instruction to open all cooling valves of the laminar cooling water system to the laminar cooling system, and start timing; and when detecting that the current timing duration is equal to the unit cooling duration, issue a valve closing instruction to close all cooling valves of the laminar cooling water system to the laminar cooling system.

[0093] As an optional embodiment of the above embodiment, the cooling processing module 202 can be further configured to: when detecting that all cooling valves of the laminar cooling water system are closed, start a counter for recording the steel production quantity; when the first temperature detection value and the second temperature detection value meet the no-steel condition in the laminar cooling area again, determine whether the current count value is equal to the cooling interval; if the current count value is equal to the cooling interval, send a cooling water delivery instruction; and if the current count value is not equal to the cooling interval, update the steel production quantity of the counter.

[0094] The functions of the functional modules of the cooling device of the laminar cooling roller can be implemented according to the methods in the above method embodiments, and the specific implementation process can be referred to the related descriptions of the above method embodiments, which will not be described here.

[0095] As can be seen from the above, the present embodiment can realize precise control of the laminar cooling roller for cooling processing.

[0096] The cooling device of the laminar cooling roller mentioned above is described from the perspective of functional modules, and further, the present application also provides an electronic device, which is described from the perspective of hardware. Figure 3 The structure of the electronic device provided in an embodiment of the present application is shown in FIG. 3. Figure 3 As shown in FIG. 3, the electronic device includes a memory 30 for storing a computer program, and a processor 31 for executing the computer program to realize the steps of the cooling method of the laminar cooling roller mentioned in any of the above embodiments.

[0097] The processor 31 can include one or more processing cores, such as a 4-core processor, an 8-core processor, and the like. The processor 31 can also be a controller, a microcontroller, a microprocessor, or other data processing chip, and the like. The processor 31 can be implemented in at least one of a hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), a PLA (Programmable Logic Array), and the like. The processor 31 can also include a main processor and a co-processor. The main processor is a processor for processing data in an awake state, also referred to as a CPU (Central Processing Unit). The co-processor is a low-power consumption processor for processing data in a standby state. In some embodiments, the processor 31 can be integrated with a GPU (Graphics Processing Unit) for rendering and drawing content required to be displayed by a display screen. In some embodiments, the processor 31 can further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

[0098] The memory 30 can include one or more computer-readable storage media. The computer-readable storage media can be non-transitory. The memory 30 can also include high-speed random access memory and non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices. In some embodiments, the memory 30 can be an internal storage unit of an electronic device, such as a hard disk of a server. In other embodiments, the memory 30 can also be an external storage device of an electronic device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. Further, the memory 30 can include both an internal storage unit and an external storage device of an electronic device. The memory 30 can be used to store not only application software and various data installed in an electronic device, such as program code for executing the cooling method of the laminar cooling roller, but also to temporarily store data that has been output or will be output. In the present embodiment, the memory 30 is used to store at least the following computer program 301, which, after being loaded and executed by the processor 31, can implement the related steps of the cooling method of the laminar cooling roller disclosed in any of the preceding embodiments. In addition, the resources stored in the memory 30 can also include an operating system 302 and data 303, etc., and the storage mode can be temporary storage or permanent storage. The operating system 302 can include Windows, Unix, Linux, etc. The data 303 can include, but is not limited to, data corresponding to the cooling result of the laminar cooling roller, etc.

[0099] In some embodiments, the electronic device described above can further include a display screen 32, an input / output interface 33, a communication interface 34, or a network interface, a power supply 35, and a communication bus 36. Among them, the display screen 32 and the input / output interface 33 such as a keyboard belong to a user interface, and the optional user interface can further include a standard wired interface, a wireless interface, and the like. Optionally, in some embodiments, the display can be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, and the like. The display can also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the electronic device and to display a visualized user interface. The communication interface 34 can optionally include a wired interface and / or a wireless interface, such as a WI-FI interface, a Bluetooth interface, and the like, which is usually used to establish a communication connection between the electronic device and other electronic devices. The communication bus 36 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like. The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, Figure 3 In the figure, only one thick line is used to represent the bus, but it does not mean that there is only one bus or only one type of bus.

[0100] Those skilled in the art can understand that Figure 3 The structure shown in the figure does not constitute a limitation on the electronic device, and can include more or fewer components than the figure, for example, it can further include sensors 37 for implementing various functions.

[0101] The functions of the functional modules of the electronic device of the present application can be specifically implemented according to the methods in the above method embodiments, and the specific implementation process can refer to the related description of the above method embodiments, which will not be repeated here.

[0102] As can be seen from the above, the present embodiment can realize precise control of the laminar cooling roller to perform cooling treatment.

[0103] It can be understood that if the cooling method of the laminar cooling roller way in the above embodiments is implemented in the form of a software function unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the present application or the part that essentially contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product, which is stored in a storage medium and performs all or part of the steps of the method of each embodiment of the present application. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), an electrically erasable programmable ROM, a register, a hard disk, a multimedia card, a card-type memory (such as an SD or DX memory), a magnetic memory, a removable magnetic disk, a CD-ROM, a magnetic disk or an optical disk, and various media that can store program codes.

[0104] Based on this, the present application further provides a readable storage medium storing a computer program, which is executed by a processor to perform the steps of the cooling method of the laminar cooling roller way of any one of the above embodiments.

[0105] The present application further provides a hot strip production system, please refer to Figure 4 , which can include:

[0106] The hot strip production system can include a first hot metal detector 401, a finishing mill group 402, a laminar cooling water system 403, a laminar cooling roller way 404, a second hot metal detector 405, a coiler 406, a human-computer interaction module 407, and a processor 31.

[0107] The processor 31 is connected to the first hot metal detector 401, the second hot metal detector 405, the laminar cooling water system 403, and the human-computer interaction module 407, respectively. The first hot metal detector 401 is deployed at the entrance of the finishing mill group 402, and the second hot metal detector 405 is deployed at the outlet of the laminar cooling. The human-computer interaction module 407 can be deployed on an operation display screen, and the processor 31 is used to implement the steps of the cooling method of the laminar cooling roller way as described in any one of the above embodiments.

[0108] The processor 31 can determine whether there is steel in the laminar cooling area by collecting the detection values fed back by the first hot metal detector 401 and the second hot metal detector 405 in the hot-rolled steel strip production system, and control the opening or closing of the cooling valve of the delivery header of the cooling water of the laminar cooling water system 403 according to the determination result. The first hot metal detector 401 and the second hot metal detector 405 are used to sense the hot steel strip, determine the position of the steel strip, and send a status signal to the processor 31; the laminar cooling water system 403 is a downstream process of the finishing mill group for cooling the steel strip, and contains upper and lower cooling water. In this embodiment, the laminar cooling water system 403 is used to cool the laminar cooling roller way when there is no steel strip in the laminar cooling area; the human-computer interaction module 407 is used to select to enable or stop using the automatic cooling mode of the laminar cooling roller way, and can also set the unit cooling time and cooling interval.

[0109] The functions of each functional module of the hot-rolled steel strip production system in this embodiment can be implemented according to the method in the above method embodiment, and the specific implementation process can be referred to the related description of the above method embodiment, which will not be repeated here.

[0110] As can be seen from the above, the present embodiment can realize precise control of the laminar cooling roller way for cooling treatment.

[0111] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between each embodiment can be referred to each other. For the hardware disclosed in the embodiments, including devices and electronic equipment, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0112] The skilled person can further realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware, computer software or a combination of both. In order to clearly show the interchangeability of hardware and software, the composition and steps of each example have been described in the above description. Whether the functions are realized by hardware or software depends on the specific application and design constraints of the technical solution. The skilled person can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0113] The cooling method of the laminar flow cooling roller bed, the device, the electronic equipment, the readable storage medium, and the hot-rolled steel strip production system provided by the present application are described in detail above. In this paper, specific examples are applied to explain the principles and implementation modes of the present application. The above description of the examples is only used to help understand the method of the present application and its core idea. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A cooling method for a laminar flow cooling roller conveyor, characterized in that, include: Acquire the first temperature detection value of the first hot metal detector deployed at the inlet of the finishing mill, and the second temperature detection value of the second hot metal detector deployed at the laminar cooling outlet; When the first temperature detection value and the second temperature detection value meet the condition of no steel strip in the laminar flow cooling area for the first time, a cooling water delivery instruction for cooling the laminar flow cooling roller conveyor is sent to the laminar flow cooling water system according to the preset unit cooling time; the cooling water delivery instruction indicates the number of cooling valves opened, the opening sequence, and the opening time. When the first temperature detection value and the second temperature detection value again meet the condition of no steel strip in the laminar flow cooling area, and the current time reaches the preset cooling interval, a cooling water delivery command is sent. The step of sending a cooling water delivery instruction to the laminar flow cooling roller conveyor to the laminar flow cooling water system according to a preset unit cooling time includes: A valve opening command is sent to the laminar flow cooling system to control all cooling valves of the laminar flow cooling water system to open, and a timer is started at the same time; when it is detected that the current timer duration is equal to the unit cooling duration, a valve closing command is sent to the laminar flow cooling system to control all cooling valves of the laminar flow cooling water system to close. Wherein, the step of sending a cooling water delivery command when the first temperature detection value and the second temperature detection value again meet the condition of no steel strip in the laminar flow cooling zone, and the current time reaches the preset cooling interval, includes: When it is detected that all cooling valves of the laminar flow cooling water system are closed, a counter for recording the steel production quantity is started; when the first temperature detection value and the second temperature detection value again meet the condition of no steel strip in the laminar flow cooling area, it is determined whether the current count value is equal to the cooling interval; if the current count value is equal to the cooling interval, a cooling water delivery command is sent; if the current count value is not equal to the cooling interval, the steel production quantity of the counter is updated.

2. The cooling method for laminar flow cooling roller conveyors according to claim 1, characterized in that, Before sending the cooling water delivery instruction to the laminar flow cooling roller conveyor to the laminar flow cooling water system according to the preset unit cooling time, the method further includes: Custom cooling parameters can be pre-configured in the human-computer interaction interface; Upon receiving a user's command to set cooling parameters, determine whether cooling parameters exist. If no cooling parameters exist, the unit cooling duration and cooling interval are obtained by parsing the cooling parameter setting instructions; If cooling parameters exist, the cooling duration and / or cooling interval of the current unit are updated by parsing the cooling parameter setting instructions.

3. The cooling method for laminar flow cooling roller conveyors according to claim 1, characterized in that, Before obtaining the first temperature detection value of the first hot metal detector deployed at the inlet of the finishing mill and the second temperature detection value of the second hot metal detector deployed at the laminar cooling outlet, the process includes: The automatic cooling function configuration option is set in advance in the human-computer interaction interface; When an automatic cooling request is received from the cooling roller conveyor, the first temperature detection value of the first hot metal detector deployed at the entrance of the finishing mill and the second temperature detection value of the second hot metal detector deployed at the laminar cooling outlet are obtained.

4. The cooling method for laminar flow cooling roller conveyors according to claim 1, characterized in that, When the first temperature detection value and the second temperature detection value first meet the condition of no steel strip in the laminar flow cooling region, it includes: When the first temperature detection value and the second temperature detection value simultaneously correspond to the detection failure state for the first time, it is determined that the condition of no steel strip in the laminar flow cooling area is met.

5. A cooling device for a laminar flow cooling roller conveyor, characterized in that, include: The data acquisition module is used to acquire the first temperature detection value of the first hot metal detector deployed at the inlet of the finishing mill and the second temperature detection value of the second hot metal detector deployed at the laminar cooling outlet. The cooling module is used to send a cooling water delivery instruction to the laminar cooling water system to cool the laminar cooling roller conveyor when the first temperature detection value and the second temperature detection value first meet the condition of no steel strip in the laminar cooling zone, according to a preset unit cooling time. The cooling water delivery instruction indicates the number of cooling valves opened, the opening sequence, and the opening time. When the first temperature detection value and the second temperature detection value meet the condition of no steel strip in the laminar cooling zone again, and the current time reaches the preset cooling interval, a cooling water delivery instruction is sent. The cooling module is further configured to: send a cooling water delivery instruction to the laminar flow cooling water system to cool the laminar flow cooling rollers according to a preset unit cooling duration, including: issuing a valve opening instruction to the laminar flow cooling system to control all cooling valves of the laminar flow cooling water system to open, and starting a timer simultaneously; when the current timer duration is detected to be equal to the unit cooling duration, issuing a valve closing instruction to the laminar flow cooling system to control all cooling valves of the laminar flow cooling water system to close; when the first temperature detection value and the second temperature detection value again meet the condition of no steel strip in the laminar flow cooling area, and the current time reaches the preset cooling interval, sending a cooling water delivery instruction, including: when all cooling valves of the laminar flow cooling water system are detected to be closed, starting a counter that records the steel production quantity; when the first temperature detection value and the second temperature detection value again meet the condition of no steel strip in the laminar flow cooling area, determining whether the current count value is equal to the cooling interval; if the current count value is equal to the cooling interval, sending a cooling water delivery instruction; if the current count value is not equal to the cooling interval, updating the steel production quantity in the counter.

6. An electronic device, characterized in that, It includes a processor and a memory, the processor being used to implement the steps of the cooling method of the laminar flow cooling roller as described in any one of claims 1 to 4 when executing a computer program stored in the memory.

7. A readable storage medium, characterized in that, The readable storage medium stores a computer program that, when executed by a processor, implements the steps of the cooling method for the laminar flow cooling roller as described in any one of claims 1 to 4.

8. A hot-rolled steel strip production system, characterized in that, It includes a finishing mill, a first hot metal detector, a laminar flow cooling water system, a laminar flow cooling roller conveyor, a second hot metal detector, a coiler, a human-machine interface module and processor; The processor is connected to the first hot metal detector, the second hot metal detector, the laminar flow cooling water system, and the human-machine interaction module, respectively. The first hot metal detector is deployed at the inlet of the finishing mill, and the second hot metal detector is deployed at the laminar cooling outlet; The processor is used to implement the steps of the cooling method for the laminar flow cooling roller as described in any one of claims 1 to 4.

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